Patent · US Expired

Multilayer, matt, thermoformable, IR-reflective polyester film

US7189451B2 · kind B2 · utility

3Cited by

11References

19Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Thorsten Kiehne · Wiesbaden, DE
Ursula Murschall · Nierstein, DE
Holger Kliesch · Ginsheim-Gustavsburg, DE

Key dates

Filing date	Jul 1, 2005
Grant date	Mar 13, 2007
Priority date	—
Expiry date	Jul 1, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Multilayer, biaxially oriented polyester films which include as a constituent of the base layer B, a crystallizable polyester with increased diethylehe glycol content and/or increased polyethylene glycol content, and/or increased isophthalic acid content, preferably polyethylene terephthalate. The outer layers of the inventive films advantageously include at least one IR-reflective pigment and one UV stabilizer. The inventive films advantageously feature adjustable mattness, diffuse scattering power for visible light, high light transmittance, IR reflectance, and good thermoformability, and are suitable for thermally protective coatings or thermally protective packaging.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.